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W. R WALLACE. OAR GOUPLING. No. 277,635. Patented May 15,1883.

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UNITED STATES PATENT OFFICE.

\VILLIAM 1i. WALLACE, OF MOUNT VERNON, ILLINOIS, ASSIGNOR OF TWO- THIRDSTO THOMAS L. RIVERS, OF SAME PLACE.

CAR-COUPLING.

SPECIFICATION forming part of Letters Patent No. 277,635, dated May 15,1883.

Application filed November 3, 1882.

To all whom it may concern Be it known that I, WILLIAM R. VVALLAOE, acitizen of the United States, residing at Mount Vernon, in the county ofJefferson and 5 State of Illinois, have invented a new and usefulGar-Coupling, of which the following is a specification, reference beingbad to the accompanying drawings.

This invention relates to automatic car-coupl lings, and has for itsobject to provide a simple, inexpensive, durable, and efficient couplingby means of a pin and link, that will be especiallyadapted to the shapeof the common draw-head, that will effect an automatic coup- I lingbetween cars of different height, and that will admit of vertical andhorizontalplay of the link.

The invention, consists substantially, in the application to a'commonpin-and-link drawhead having a preferably slightlyqnodifiedinteriorconstruction of aswingingblock of novel and adaptedconstruction, as will be hereinafter more fully set forth.

In the drawings, Figure 1 is a perspective view of the improveddraw-head complete. Fig. 2 is a vertical longitudinal sectional view ofthe draw-head ready for coupling. Fig. 3 is a like view after thecoupling is effected. Fig. 4 is a transverse vertical sectional view 0on the line w .r, Fig. 3. Fig. 5 is a detail perspective view of theswinging block which forms a pin-support and link-adjuster.

Referring to the drawings, A designates the draw-head, which is of theordinary construc- 5 tion', having the vertical pi n-perforation B,mouth 0, and link-chamber D. The latter is preferably formed with anupwardly and rear wardly inclined rear wall, E, and across the mouth (I,at its top, isarranged a downwardly- 40 extending transverse flange, F,having a rearwardly and upwardly beveled under edge, Gr. His thepin-snpportingblock, which is formed with a transverse concaved groove,1, at its lower front edge, from which its face is beveled rearwardlyand upwardly, as at J, and another transverse concaved groove, K, formedat the front top edge. The top L of this block 11 is fiat, as shown, andformed with a curved rear edge, M, from which its back N is beveledrearwardly and downwardly. The under (N0 model.)

surface, 0, of block H is preferably slightly curved rearwardly andupward] y. About centrally in top L is formed a deep recess, P, having aforwardly and upwardly beveled front wall, Q, from which extends aforwardly-inclined channel or groove, R, in face J, running down togroove I. Block H is also provided with a transverse perforation, S, atits edge M, which is ovolo in cross-section, and inclined rearwardly,with the point or smaller end of the oval at the top.

T is a cross-pin, which passes through perfo rations U U at the top ofthe draw'head, and also through the ovolo perforation Sin the block, bywhich means the latter is pivoted in the draw-head.

V is the coupling-pin, which may be connected with suitablechain-and-lever miechanism, by whichit may be lifted in uncouplingwithout going between the cars.

The operation and advantages of my invention will be readily understoodand appreciated. The block H normally hangs just inside the mouth of thedraw-head, and closes the same. When in this position its top L engagesthe edge G of flange F and the pivot-pin T rests in the small end of theovolo perforation S. The coupling-pin is now supported in recess P. Incoupling, when the approaching link strikes the face of block H thelatter swings back on pin T until the front wall, Q, of recess P forms aforwardly-inclined plane dome, on which the pin V slides as the blockswings back until it passes over the end and falls to effect thecoupling. While in the draw-head the link has ample horizontal play, asthe block will swing back and follow thelink forward. When the linkplays vertically the block moves like wise, by reason of its ovoloperforation S on pin T, until the latter isin the lower butt-end of theoval. If the link, in coupling, strikes the beveled face J or groove K,it is at once guided down into the lower groove, I, in which it works.

To uncouple it is only necessary to raise the coupling-pin, when theblock, by reason. of its gravity, swings forward in position to supportthe coupling-pin in its recess. This forward swing throwsthecoupling-link out of the drawhead, and the movement is limited by theengagement of the top of the block with the under side of the top frontflange.

I claim as my invention-- 1. The combination, with the draw-head havingthe usual pin-perforation, of the interiorlyswinging block having atransverse bottom groove in its face,from which the latter is beveledrearwardly and upwardly, a pin-supporting recess in its top, having anupwardly and forwardly beveled front wall leading toa guidegroove in theface of the block and extending to the bottom transverse groove, as setforth.

2. The combination of the draw-head havin g the verticalpin-perforation, and the transverse flange across the top of its mouth,provided with an upwardly and rearwarclly beveled under edge, thetransverse pivot-pin, and

the interiorly-swinging block having a transverse bottom groove in itsface, from which the latter is beveledrearwardly and. upwardly, 20 apin-supporting recess in its top, having an upwardly and forwardlybeveled front wall leading to a guide-groove in the face of the blockand extending to the bottom transverse groove, said block having also aflat top which 25 engages the said beveled edge of the transversegroove, as set forth.

In testimony that I claim theforegoin g as my own I have hereto affixedmy signature in presence of two witnesses.

. WILLIAM B. WALLACE.

Witnesses:

O. S. BOSWELL,

W. H. SATTERFIELD.

